Friction-bearing



(N0 Modem G2, W. SHOEMAKER.

FRICTION BEARING.

No. 311,925. Patented Feb. 10,1885.

Ffw m I? Attorneys JNVEJVTOR secured thereon.

UNITED STATES PATENT OFFICE.

GEORGE WASHINGTON SHOEMAKER, OE DALTON PENNSYLVANIA.

FRICTION-BEARING.

SPECIFICATION forming part of Letters Patent No. 311,925, dated February10, 1885.

Application filedAugnst 13, 18*4. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE W. SHOEMAK- ER, a citizen of the UnitedStates, residing at Dalton, in the county of Lackawanna and State ofPennsylvania, have invented new and useful Improvements in FrictionBearings, of which the following is a specification, reference being hadto the accompanying drawings.

My invention has relation to friction-bearings forjournals of axlesdesigned to be used without lubricators; and it consistsin theconstruction and novel arrangement of parts, as will be hereinafterfully described, and particularly pointed out in the claim.

In the drawings, Figure l is a vertical longitudinal sectional view of aportion of an axle with my improved friction-bearing applied thereto.Fig. 2 is a vertical transverse seetion on the line a; w in Fig. 1, andFig. 3 is a vertical sectional view on the lineyy in Fig. 1.

Referring by letter to the accompanying drawings, A designates astraight untapering axle, having collar 0 made integral therewith orsecured thereon, and a collar, 0, near its outer threaded end, D,whichis removahly The collars O and C are grooved in their opposite faces toreceive the ends of the alternating rolls B and B. The ends of the rollsB are tapered to form cen ter points. E. which fit the flaring mouths Eof the groovt s FF of the collars C C. The ends of the rolls B arenntapered and enter the deeper parts F of the grooves F F. The rolls Bare covered with rubber or other elastic substance, and keep thesurfaces of the rolls B from touching each other. The rolls B arecase-hardened, as is also the pipe or sleeve G. The sleeve G is slippedover the rolls B B, and is held in place by a flanged nut, H,which isturned on the threaded end of the axle A. The axle A has a seat, I,turned in it for the reception of an elastic band, J, which springs outagainst the rolls B to prevent chattering. The grooved collars O 0 holdthe rolls together when the sleeve G has been removed.

No oil or other lubricator is required with axles provided with thesefriction-bearings. They run perfectly dry and radiate the heat asrapidly as it is generated, and are therefore comparatively cool whenoperated.

Having thus fully described my invention. what I claim as new, anddesire to secure by Letters Patent of the United States, is

The combination, with the untapered axle having threaded ends and thecollars O O, grooved in their opposing faces, as at E F, of thecase-hardened rolls B, having tapering ends E, the rolls B, havingelastic surfaces and nntapered ends, the elastic band J in a seat in theaxle, the case-hardened sleeve G, and the flanged nut H, substantiallyas specified.

In testimony that I claim the foregoing as my own I havehereto afli xedmy signature in presence of two witnesses.

GEORGE WASHINGTON SHOEMAKER.

Witnesses:

J. H. CAMPBELL, HUGO BAUMANN.

